Sub-Zero DEC3650FI/ Running Cost (Freezer)
Sub-Zero DEC3650FI/: running cost
At 621 kWh/yr, the Sub-Zero DEC3650FI/'s ENERGY STAR certification puts it one of the more expensive models in its category to run against every other certified freezer.
That $117 is priced at 18.8¢/kWh, the average of all 51 state rates this site tracks. Your own state's rate is one click away.
Efficient, or not, for a freezer
The category average is 401 kWh/yr; this model runs 54.9% above it, ranking 641 of 658 freezers tracked here for running cost. That average is drawn from all 658 freezers ENERGY STAR currently certifies, not an outside number, a $41/year gap from this model at the national rate. Full sourcing is in the sourcing notes.
Right next to it on the list
A rank or two either side of the Sub-Zero DEC3650FI/: Jenn-Air JBZF30IGX ($111/yr, 588 kWh/yr), then Bertazzoni REF36FCBIPNP ($118/yr, 630 kWh/yr).
Comparing Sub-Zero's own models
Ranked 7 of Sub-Zero's 8 certified freezers, this sits between the ID-30F ($67/yr, the brand's cheapest) and the CL3650F/S// ($120/yr, its priciest).
Lifespan
NAHB's Study of Life Expectancy of Home Components does not publish a figure for freezers, so no lifetime cost is shown here rather than a guessed one. The annual and monthly figures above stand on their own.
Weighing a replacement
Running above the category average, $117/year is exactly the kind of number that makes a newer, more efficient model pay for itself faster.
See what else is certified in this category before you decide.
If you're keeping it
The Sub-Zero DEC3650FI/ already costs $117/year to run; a repair bill on top of that is the kind of expense a protection plan exists to smooth out.
Where this number comes from
At rank 641 of 658 for running cost, see the freezer category page for the rest of the field, or the guide to how much your state matters. The 621 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.